An archer pulls a bowstring with a spring constant of 3510 N/m back 0.135 m from its resting position

kinetic-energy
spring-constant

#1

An archer pulls a bowstring with a spring constant of 3510 N/m back 0.135 m from its resting position. What kinetic energy will an arrow nocked on the string have after the bowstring is released?

Answer:

energy = 1/2 k x^2 = 1/2 * 3510 * 0.135²

answer is in Joules